e/Half twin

Information
has gloss	eng: Half twins or half-identical twins are the result of a very rare form of twinning in which the twins inherit exactly the same genes from their mother but different genes from their father. Although examples of half-identical twins have been found, the exact mechanism of their conception is not well-understood.
lexicalization	eng: Half Twins
lexicalization	eng: Half twin
instance of	(noun) either of two offspring born at the same time from the same pregnancy twin